Question

"In a three digit number the hundreds digit is twice the tens digit while the units digit is thrice the tens digit also the sum of its digits is 18 find the number"

Answer 1

Answer:

and hence,639 is the answer.

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Answer 2

Answer:

"639

Step-by-step explanation:

Let the tens digit be x

Then, The hundreds digit = 2x

And the unit digit = 3x

$\therefore2x + x + 3x = 18 \\ 6x = 18 \\ x = \frac{18}{6} = 3$

Tens digit = X = 3

Hundreds digit = 2x = 6

Units digit = 3x = 9

Hence, the required no. = (100×6+10×3+9) = 639"